Resilient wheel



D MORIARTY RESIUENT WHEEL. APPLICATION man APR. I7, |919.

Patented Mar.16,"1920.

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Ee it known that I, DANIEL illonmn'rr, a citizen ot the United States, residing lat Gallaiid, in the .county of Alameda and State of California, haveA inventedv new and useful improvements in Resilient lllheels, of which the Jfollowing' is a specification.

My present invention relates to vehicle wheels oi the kind adapted for use on automobiles, motor trucks and similar vehicles and the .object o'' the invention is to provide a novel `and improved wheel which will be more durable and which will have a greater load-carrying capacity than pneuniatic tires as usually used and yet lit will afford substantially the saine amount of resilience as that afforded by the usual pneu- Also the structure of the wheel is such thatit be built easily to carry different loads as conditionsmay require.

'To this and other ends the invention consists in certain improvements and combinations and arrangement of Darts, all as will hereinafter' be more fully described the features of novelty being pointed out particularly in the claim at the endr ot the specification.

In the accompanying drawings-4 Figure l represents a section taken .radially through a portion of a 'vehicle wheel constructed in accordance/with the present invention.

Fig. 2 represents a side eleva-tion of a coniplete wheel embodying the invention.

Similar parts are designated by the same reference characters in both views.

The present invention is applicable generally to the wheels of automobiles, motor trucks and other vehicles where it is desirable or necessary to aord resilience. The invention is particularly adapted for use in connection with the wheels of motor trucks having relatively large load-carrying caacity and a wheel suitable for such use is illustrated in the accompanying drawing and will be hereinafter described in detail. It is to be understood, however, that the invention is not restricted to the precise construction shown as equivalent constructions are contemplated and will be included within the scope of the claim.

In the present instance, the wheel shown comprises a hub l, spokes 2 and telly 3 which are preferably rigid and may be coniposed o' wood as is usual, and the wheel also Specincationiof Letters retentratented Mar. 1.6.1920,.

@puatron inea iiprii i7, 191e. seriai No. 290,856.

comprises an inner rime and an outer riiii The rim il, which is preferably of cylindrical forni, as show-ii, is fixed to and encircles the elly i The outer friin ,5 is 'larger in diameter than that ot the inner i'iin a, thus providing -an annularspace between the rims to contain pneumatic cushions. Ditl'erent numbers' of pneumatic cushionsmay be'used according to the calculated or -iiitended load-carrying capacity four of these ons iions being shown inthe present instance and arranged in parallelism and cach extending completely around the annular space between the rims. These 'pneumatic cushions Vare composed of coinposite rubber and fabric tubes capable ot beinginflated to pressures usually employed with penuinatic tires and are capable otsustaining such pressures without unduly stretching or expanding, although they are compressible under the weight of the inner rinil. In lorder to prevent injury to the pneumatic cushions by corrosion of the rims,

flaiid 5, which rims are preferably made ot' steel or other suitable faces or the rims are preferably lined with vleather or other appropriate material indi-- cated at 7. The stems 8 Afor the pneumatic .cushions may extend through the: inner rim 4 as shown to enable them to v.be inflated. The louter rim icarries a suitabletiead. As shown, the tread is composed of four sections 9, although diderent numbers of treads may obviously be used. Each tread is composed of rubber composition similar to that used in the manufacture of the usual solid tires, metal rivets 10 extending downwardly through the outer rim 5 with the heads of the rivets countersunk as shown and the tread sections being attached to the outer rim by molding or vulcanizing it upon the rim and the projecting rivets. The rivets will securely anchor the tread sections to the rim and will prevent creeping of the tread sections thereon. The groundengaging portions of the tread sections may also have chains 11 molded or set therein, as shown in Fig. 1.

In order to prevent relative circumferential or lateral displacement of the outer rim relatively to the inner rim, a suitable number of bolts 12 are passed loosely through holes formed in the opposite edges of the outer rim 5, these bolts being spaced Vat intervals circumferentially of the rim and ot the wheel,

metal, the adjacent Cil the bolts having heads which are adapted easily and without requiring disassembling Y to abut against the outer side of the rim. of the wheel as a whole; Y The inner ends of the bolts extend loosely The present invention provides a wheel 45 through nipples 13 which are threadedl which affords the resilience of a pneumatic through the inner rim 4 adjacent to its tire and yet it is capable of carrying much opposite edges, these nipples serving as greater loads than is possible with pneuguides for the bolts and being reinforced matic tires. This greatly increased loadby fittings 14y which are threaded on the carrying capacity of vthe wheel is obtained 50 portions of the nipples which project inwithout undue air pressure in the pneumatic wardly from the inner rim, the partslf tire as such air pressure may be equal to being secured by screws or other suitable that usually used in pneumatic tires, the in` means to the inner side of the inner rim. Vcreased load-carrying capacity of the wheel The guides 13 and their reinforcements 14 beingobtained because the load upon the 55 are used preferably on the driving wheels wheel is distributed between and shared by of an automobile or motor truck for the the plurality of pneumatic cushions.

reason that the extended bearings provided I claim as my inventionby guides 13 effectively prevent relative r A vehicle wheel comprising an inner rigid tation between the inner and outer rims, portion having' a pleripheral rim, an outer 60 although permitting relative radial moverim spaced from t e inner rim to form an ments between the rims. However,in conannular space between the rims', a set of anstructing the front wheel for an automobile nular pneumatic cushions located side by or motor truck, the extended bearing is un side and contained inv said annular space, necessary, in which case the guides 18 and the opposite side edges of the inner and, 65 their reinforcements 14 may be omitted and outer rims projecting Ylaterally beyond the the bolts '12 extended through suitable openopposite sides of the said set of cushionsV ings formed in the inner rim. Undue radial and providing annular margins 'which are movement between the rims is prevented by spaced to form side openings which are connuts 15 which are threaded upon the inner tinuations of said annular space, said mar- 70 ends of the bolts and these nuts may be set gins having circumferentially spaced pairs to regulate the amount of resilience afforded of radial openings therein, and radial Vmemby the wheel. Furthermore, these nuts and bers fitted in the respective pairs of openthe bolts carrying them will prevent relaings in said margins and .operative to pretive collapsing of the rimsI should the pneuvent relative lateral movement between the 75 matic cushions become injured or destroyed. rims and to limit relative radial and cir- Obviously in constructing wheels vfor vecumferential movements between the rims.

hicles to carry relatively lighter loads, the In testimony whereof VI have hereunto setV rims may be made narrower than those my hand in presence of two subscribing shown and two or three pneumatic cushions witnesses.

may be used. By constructing these rims DANIEL MORIARTY.

so as to present substantially cylindrical Witnesses: Y

faces between them, the pneumatic cushions RALPH A.` KNMP,

may be introduced into place or removed HILDA B. SHEPARD, 

